Why did my best mate lie to me?

My guy best friend *Jack* was recently included on a mutual younger female acquaintance’s birthday party friends list on facebook. I remember the last time we’d discussed her, a few months ago, he’d admitted to fancying her and implied that she doesn’t want anything to do with him.

She’s little and cute and twenty five and he’s middle aged, obese and balding. Was he worried that I’d judge him for the fact that he and another mutual acquaintance, a guy around my age, are clearly hoping that this younger woman will sleep with them or date them? I think it’s a bit sad at their age, however, I don’t think it’s up to me to decide who they spend their time with.

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He’d wanted her in our friend group and my friend *Nancy* and I didn’t like her; because she’s blown us off twice at social invites and she seems prissy, overly serious and politically correct.
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On the contrary, I’m not upset at all. I’m slightly curious as to why he was so secretive about it.
Why did my best mate lie to me?
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